Article(id=1321935395961553731, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1321927083589227197, articleNumber=null, orderNo=null, doi=10.11868/j.issn.1001-4381.2024.000157, pmid=null, cstr=32421.14.j.issn.1001-4381.2024.000157, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1709568000000, receivedDateStr=2024-03-05, revisedDate=null, revisedDateStr=null, acceptedDate=1722960000000, acceptedDateStr=2024-08-07, onlineDate=1793103558769, onlineDateStr=2026-10-27, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793103558769, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793103558769, creator=13701087609, updateTime=1793103558769, updator=13701087609, issue=Issue{id=1321927083589227197, tenantId=1146029695717560320, journalId=1220038251117760515, year='2026', volume='54', issue='4', pageStart='1', pageEnd='345', issueExtLink='null', onlineDate='null', pubDate='1776614400000', pubDateStr='2026-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793101576945, creator='13701087609', updateTime=1793101576945, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=250, endPage=257, ext={EN=ArticleExt(id=1321935396158686020, articleId=1321935395961553731, tenantId=1146029695717560320, journalId=1220038251117760515, language=EN, title=Microstructure evolution of Al8.79Zn2.16Mg2.11Cu0.12Zr alloy during homogenization, columnId=1220689384450478826, journalTitle=Journal of Materials Engineering, columnName=RESEARCH ARTICLE, runingTitle=null, highlight=null, articleAbstract=
The microstructure evolution in Al8.79Zn2.16Mg2.11Cu0.12Zr alloy ingot during the one-step low-temperature homogenization and three-steps high-temperature homogenization is investigated by the scanning electron microscopy (SEM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and the transmission electron microscopy (TEM). The results indicate that the microstructure of the cast Al8.79Zn2.16Mg2.11Cu0.12Zr alloy is similar to that of traditional commercial Al-Zn-Mg-Cu alloys, consisting of η′(Mg(Zn, Cu, Al)2), η(MgZn2), and Fe-rich (Al7Cu2Fe) phases. The θ(Al2Cu), T(Al2Mg3Zn3),and S(Al2CuMg) phases are not present. The redissolution effect of the second phases is not enough after one-step homogenization heat treatment at low temperature(380 ℃/2,8,16,24 h) and the change of redissolution effect is not obvious even if the homogenization heat treatment time is prolonged. A large number of the eutectic organization of the second phases still remains in the original mesh structure. However, the redissolution effect is improved by increasing the homogenization heat treatment temperature to 475 ℃(430 ℃/12 h+470 ℃/4 h+475 ℃/15 h), except for a small amount of Fe-rich (Al7Cu2Fe) phases that are difficult to redissolution, the other phases are almost completely redissolution, no η′ phase transformation of S phase is detected during the one-step low-temperature homogenization and three-steps high-temperature homogenization heat treatment processes. The appearance of quench cracks occurs during the three-steps homogenization heat treatment at 475 ℃, which severely deteriorated the mechanical properties of the region near the crack in the alloy.
, authors=Dayong ZHUANG
1, Ping WU
1, Dawei REN
1, Jie LIU
2, Xiang FENG
1, Peng YU
2, authorsList=Dayong ZHUANG, Ping WU, Dawei REN, Jie LIU, Xiang FENG, Peng YU, authorCompany=null, correspAuthors=Dayong ZHUANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1321935397647663953, articleId=1321935395961553731, tenantId=1146029695717560320, journalId=1220038251117760515, language=CN, title=均匀化过程中Al8.79Zn2.16Mg2.11Cu0.12Zr合金微观结构演变, columnId=1220689384622445292, journalTitle=材料工程, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
通过扫描电子显微镜、差示扫描量热法、X射线衍射仪和透射电子显微镜研究Al8.79Zn2.16Mg2.11Cu0.12Zr合金铸锭在单级低温均匀化热处理过程和三级均匀化热处理过程中的微观组织演变。结果表明:铸态Al8.79Zn2.16Mg2.11Cu0.12Zr合金的微观结构与传统的商用Al-Zn-Mg-Cu合金一样,均由η′(Mg(Zn,Cu,Al)2)、η(MgZn2)和富Fe(Al7Cu2Fe)相等组成,未发现θ(Al2Cu)、T(Al2Mg3Zn3)和S(Al2CuMg)相存在。在低温380 ℃/2、8、16、24 h均匀化热处理过程中,第二相回溶效果不佳,延长均匀化热处理时间回溶效果未有明显改善,大量第二相仍然呈现原始的网状结构。然而提高均匀化热处理温度到475 ℃(430 ℃/12 h+470 ℃/4 h+475 ℃/15 h)后回溶效果得到极大改善,除了少量的富Fe(Al7Cu2Fe)相难于回溶之外,其他相几乎完全回溶,整个单级低温均匀化和三级高温均匀化热处理过程中均未检测到η′相向S相转化,但是在475 ℃的三级均匀化热处理过程中检测到淬火裂纹的出现,严重恶化合金中裂纹附近组织的力学性能。
, authors=庄大勇
1, 武萍
1, 任大为
1, 刘杰
2, 冯翔
1, 于鹏
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Analysis of as-cast Al8.79Zn2.16Mg2.11Cu0.12Zr alloy(a),(b)SEM images;(c)XRD pattern;(d)DSC curves, figureFileSmall=SmuYZRom0J6AuyQ5JW5/nw==, figureFileBig=YO+pJx0nh3x6uFsqQU1Jow==, tableContent=null), ArticleFig(id=1321935401980380031, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=图1, caption=
铸态Al8.79Zn2.16Mg2.11Cu0.12Zr 合金分析(a),(b)SEM图;(c)XRD 谱图;(d)DSC曲线, figureFileSmall=SmuYZRom0J6AuyQ5JW5/nw==, figureFileBig=YO+pJx0nh3x6uFsqQU1Jow==, tableContent=null), ArticleFig(id=1321935402223649664, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Fig.2, caption=
SEM images of Al8.79Zn2.16Mg2.11Cu0.12Zr alloy after one-step low-temperature homogenization heat treatment, figureFileSmall=oInrWN7BA9ZrPZDRg9+P8A==, figureFileBig=JjMrYmvRczRW3JdGuiVNtw==, tableContent=null), ArticleFig(id=1321935402307535745, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=图2, caption=
Al8.79Zn2.16Mg2.11Cu0.12Zr合金单级低温均匀化热处理后SEM图(a) 380 ℃/2 h;(b) 380 ℃/8 h;(c) 380 ℃/16 h;(d) 380 ℃/24 h(a)380 ℃/2 h;(b)380 ℃/8 h;(c)380 ℃/16 h;(d)380 ℃/24 h
, figureFileSmall=oInrWN7BA9ZrPZDRg9+P8A==, figureFileBig=JjMrYmvRczRW3JdGuiVNtw==, tableContent=null), ArticleFig(id=1321935403943314306, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Fig.3, caption=
Microstructure analysis of Al8.79Zn2.16Mg2.11Cu0.12Zr alloy after homogenization heat treatment at 380 ℃/24 h(a)TEM image;(b),(c)SAED patterns;(d)-(i)mapping of area B, figureFileSmall=3ivrDfjiKZJdEXfoSg8WNw==, figureFileBig=qfQgkYWMsGkw58blWFS2Lg==, tableContent=null), ArticleFig(id=1321935404023006083, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=图3, caption=
Al8.79Zn2.16Mg2.11Cu0.12Zr合金在380 ℃/24 h均匀化热处理后微观组织分析(a) TEM图;(b),(c)选区电子衍射谱图;(d)~(i)B区mapping图, figureFileSmall=3ivrDfjiKZJdEXfoSg8WNw==, figureFileBig=qfQgkYWMsGkw58blWFS2Lg==, tableContent=null), ArticleFig(id=1321935404127863684, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Fig.4, caption=
Microstructure evolution of Al8.79Zn2.16Mg2.11Cu0.12Zr alloy during three-steps homogenization heat treatment(a)one-step at 430 ℃/12 h;(b)two-steps at 430 ℃/12 h+470 ℃/4 h;(c)three-steps at 430 ℃/12 h+470 ℃/4 h+475 ℃/2 h;, figureFileSmall=zoE70dDR2H3xqxJYtrOxIQ==, figureFileBig=SK6dtZ+KD2t+90ieHvaHvA==, tableContent=null), ArticleFig(id=1321935404199166853, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=图4, caption=
Al8.79Zn2.16Mg2.11Cu0.12Zr合金在三级均匀化热处理过程中的微观组织演变(a)430 ℃/12 h一级均匀化热处理;(b)430 ℃/12 h+470 ℃/4 h二级均匀化热处理;(c)430 ℃/12 h+470 ℃/4 h+475 ℃/2 h三级均匀化热处理;(d)430 ℃/12 h+470 ℃/4 h+475 ℃/15 h三级均匀化热处理(d)three-steps at 430 ℃/12 h+470 ℃/4 h+475 ℃/15 h
, figureFileSmall=zoE70dDR2H3xqxJYtrOxIQ==, figureFileBig=SK6dtZ+KD2t+90ieHvaHvA==, tableContent=null), ArticleFig(id=1321935404278858630, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Fig.5, caption=
Microstructure evolution of Al8.79Zn2.16Mg2.11Cu0.12Zr alloy with various soaking time during three-steps homogenization heat treatment at 475 ℃, figureFileSmall=4FKNxA+YWXj7KcDq2uWOtQ==, figureFileBig=ljJP8k8cCoj62fgJLS/zRg==, tableContent=null), ArticleFig(id=1321935404354356103, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=图5, caption=
Al8.79Zn2.16Mg2.11Cu0.12Zr合金在475 ℃三级均匀化热处理不同浸泡时间的显微组织演变(a)430 ℃/12 h+470 ℃/4 h+475 ℃/2 h;(b)430 ℃/12 h+470 ℃/4 h+475 ℃/4 h;(c)430 ℃/12 h+470 ℃/4 h+475 ℃/6 h;(d)430 ℃/12 h+470 ℃/4 h+475 ℃/8 h(a)430 ℃/12 h+470 ℃/4 h+475 ℃/2 h;(b)430 ℃/12 h+470 ℃/4 h+475 ℃/4 h;(c)430 ℃/12 h+470 ℃/4 h+475 ℃/6 h;(d)430 ℃/12 h+470 ℃/4 h+475 ℃/8 h
, figureFileSmall=4FKNxA+YWXj7KcDq2uWOtQ==, figureFileBig=ljJP8k8cCoj62fgJLS/zRg==, tableContent=null), ArticleFig(id=1321935404421464968, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Fig.6, caption=
Homogenization kinetic curves of different η′(Mg(Zn,Cu,Al)2) phase spacing in Al8.79Zn2.16Mg2.11Cu0.12Zr alloy, figureFileSmall=O//EuHXpJr9xiob7FOrrAg==, figureFileBig=ytUF1YfV6ozLtjWmG2lrqg==, tableContent=null), ArticleFig(id=1321935404496962441, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=图6, caption=
Al8.79Zn2.16Mg2.11Cu0.12Zr合金不同η′(Mg(Zn,Cu,Al)2)相间距的均匀化动力学曲线, figureFileSmall=O//EuHXpJr9xiob7FOrrAg==, figureFileBig=ytUF1YfV6ozLtjWmG2lrqg==, tableContent=null), ArticleFig(id=1321935404589237130, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Table 1, caption=
EDS analysis results of different points in Fig.1 (atom fraction/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Point | Al | Zn | Mg | Cu | Ni | Si | Fe |
|---|
| 1 | 75.22 | 0.58 | | 14.43 | 1.04 | | 8.73 |
| 2 | 47.34 | 17.19 | 21.15 | 10.52 | 0.49 | | 3.32 |
| 3 | 73.65 | 0.87 | 1.04 | 14.66 | 1.90 | | 7.88 |
| 4 | 84.66 | 0.80 | 0.56 | 1.78 | 4.47 | | 7.73 |
| 5 | 30.56 | 28.90 | 30.56 | 9.17 | | 1.47 | |
| 6 | 74.61 | 4.09 | 2.56 | 11.90 | 0.78 | | 6.05 |
), ArticleFig(id=1321935404668928907, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=表1, caption=
图1中不同点的EDS分析结果(原子分数/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Point | Al | Zn | Mg | Cu | Ni | Si | Fe |
|---|
| 1 | 75.22 | 0.58 | | 14.43 | 1.04 | | 8.73 |
| 2 | 47.34 | 17.19 | 21.15 | 10.52 | 0.49 | | 3.32 |
| 3 | 73.65 | 0.87 | 1.04 | 14.66 | 1.90 | | 7.88 |
| 4 | 84.66 | 0.80 | 0.56 | 1.78 | 4.47 | | 7.73 |
| 5 | 30.56 | 28.90 | 30.56 | 9.17 | | 1.47 | |
| 6 | 74.61 | 4.09 | 2.56 | 11.90 | 0.78 | | 6.05 |
), ArticleFig(id=1321935404765397900, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Table 2, caption=
EDS analysis results of different points in Fig.2 (atom fraction/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Point | Al | Zn | Mg | Cu | Fe |
|---|
| 7 | 62.09 | 13.33 | 19.40 | 5.18 | |
| 8 | 75.55 | | | 15.9 | 8.55 |
| 9 | 72.39 | 11.62 | 7.36 | 6.93 | 1.70 |
| 10 | 92.52 | 3.13 | 2.10 | 1.54 | 0.71 |
| 11 | 75.30 | | | 16.40 | 8.30 |
| 12 | 46.34 | 20.59 | 24.67 | 8.40 | |
| 13 | 24.70 | 23.70 | 37.58 | 14.02 | |
| 14 | 76.05 | 0.85 | 0.75 | 14.27 | 8.08 |
), ArticleFig(id=1321935404840895373, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=表2, caption=
图2不同点的EDS分析结果(原子分数/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Point | Al | Zn | Mg | Cu | Fe |
|---|
| 7 | 62.09 | 13.33 | 19.40 | 5.18 | |
| 8 | 75.55 | | | 15.9 | 8.55 |
| 9 | 72.39 | 11.62 | 7.36 | 6.93 | 1.70 |
| 10 | 92.52 | 3.13 | 2.10 | 1.54 | 0.71 |
| 11 | 75.30 | | | 16.40 | 8.30 |
| 12 | 46.34 | 20.59 | 24.67 | 8.40 | |
| 13 | 24.70 | 23.70 | 37.58 | 14.02 | |
| 14 | 76.05 | 0.85 | 0.75 | 14.27 | 8.08 |
), ArticleFig(id=1321935404916392846, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=EN, label=Table 3, caption=
EDS analysis results of different points in Fig.4 (atom fraction/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Point | Al | Zn | Mg | Cu | Fe | Ni |
|---|
| 15 | 24.11 | 26.77 | 32.17 | 16.75 | 0.20 | |
| 16 | 71.06 | 1.50 | 2.29 | 17.00 | 8.16 | |
| 17 | 68.85 | 1.02 | | 18.69 | 9.28 | 2.15 |
| 18 | 54.62 | 16.26 | 17.99 | 11.13 | | |
| 19 | 83.33 | 2.32 | 1.56 | 8.02 | 3.41 | 1.36 |
| 20 | 70.06 | 1.07 | | 17.13 | 9.01 | 2.73 |
| 21 | 69.33 | 0.90 | 2.55 | 18.04 | 9.18 | |
| 22 | 70.40 | 0.91 | 0.19 | 17.60 | 9.35 | 1.56 |
| 23 | 83.00 | 3.86 | 1.35 | 7.84 | 3.15 | 0.80 |
| 24 | 68.30 | 1.34 | | 18.92 | 9.54 | 1.91 |
), ArticleFig(id=1321935404996084623, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935395961553731, language=CN, label=表 3, caption=
图4不同点的EDS分析结果(原子分数/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Point | Al | Zn | Mg | Cu | Fe | Ni |
|---|
| 15 | 24.11 | 26.77 | 32.17 | 16.75 | 0.20 | |
| 16 | 71.06 | 1.50 | 2.29 | 17.00 | 8.16 | |
| 17 | 68.85 | 1.02 | | 18.69 | 9.28 | 2.15 |
| 18 | 54.62 | 16.26 | 17.99 | 11.13 | | |
| 19 | 83.33 | 2.32 | 1.56 | 8.02 | 3.41 | 1.36 |
| 20 | 70.06 | 1.07 | | 17.13 | 9.01 | 2.73 |
| 21 | 69.33 | 0.90 | 2.55 | 18.04 | 9.18 | |
| 22 | 70.40 | 0.91 | 0.19 | 17.60 | 9.35 | 1.56 |
| 23 | 83.00 | 3.86 | 1.35 | 7.84 | 3.15 | 0.80 |
| 24 | 68.30 | 1.34 | | 18.92 | 9.54 | 1.91 |
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